GPA Drop

I am worried my declining grades and GPA will hurt my chances for college admissions. I didn’t make a B freshman and sophomore year, and had a 5.64 GPA on a 6.0 scale. However, junior year, I made 3 B’s first semester (all 89’s) that were really close to being A’s. This semester, it looks like I might end up in the same predicament. I am still in the top 1-2% of my class with these grades (summa cumme laude), but I feel like they stain my transcript. The classes are IB physics, IB chemistry, and IB English by the way.